Chini, Carmichael, Rebello, Puntambekar: PERC 2009

Does the Teaching/Learning Interview Provide an Accurate Snapshot of Classroom Learning?

Jacquelyn J. Chini, Adrian Carmichael, and N. Sanjay Rebello
Kansas State University, Manhattan, KS 66506; USA

Sadhana Puntambekar
University of Wisconsin, Madison, WI 53706; USA

The teaching/learning interview has been used to investigate student learning. The aim of the teaching/learning interview is to model a natural learning environment while allowing more direct access to a student’s or group’s thinking and reasoning. The interview typically involves one to four students working with a researcher/interviewer while being audio and video recorded. It has previously been reported [1] that the data collected in a teaching/learning interview is richer in detail than data collected in an actual classroom. We investigated the possibility that there were also other differences between these formats. We used the same instructional materials as well as pre-, mid- and post-tests in a teaching/learning interview and in a classroom laboratory setting. We will describe how the data collected in these two settings compare.

1. D. L. McBride, “Concept Categorization Analysis: Comparing Verbal and Written Data” in American Association of Physics Teachers Winter Meeting, Chicago, IL, 2009

**This work is funded in part by U.S. Department of Education, Institute of Education Sciences Award R305A080507.

Carmichael, Chini, Rebello and Puntambekar: PERC 2009 Paper

Comparing Student Learning in Mechanics Using Simulations and Hands-on Activities

Adrian Carmichael¹, Jacquelyn J. Chini¹, N. Sanjay Rebello¹ and Sadhana Puntambekar²

^{1Kansas State University, 2University of Wisconsin, Madison}

Abstract. Often computer simulation environments present students with an idealized version of the real world which can affect students’ conceptual understanding. In this study we investigate the effects of completing an experiment in mechanics using this ideal world as compared to an identical experiment in the real world. Students in three of five conceptual physics laboratory sections completed the physical experiment while the other two sections performed the virtual experiment. The experiments were part of a unit on simple machines from the CoMPASS curriculum which integrates hypertext-based concept maps in a design-based context. There was no statistically significant difference between the pre and post data of the students in the two groups. Students who performed the virtual experiment were able to answer questions dealing with work and potential energy more correctly, though neither group was able to offer sound reasoning to support their answers.

*This work is funded in part by U.S. Department of Education, Institute of Education Sciences Award R305A080507

Dong-Hai and Sanjay, PERC 2009 Paper

Students’ Difficulties in Transfer of Problem Solving Across Representations

Dong-Hai Nguyen and N. Sanjay Rebello
Department of Physics

116 Cardwell Hall - Kansas State University

Manhattan, KS 66506-2601

Studies indicate that the use of multiple representations in teaching helps students become better problem solvers. We report on a study to investigate students’ difficulties with multiple representations. We conducted teaching/learning interviews with 20 students in a first semester calculus-based physics course. Each student was interviewed four times during the semester, each time after they had completed an exam in class. During these interviews students were first asked to solve a problem they had seen on the exam, followed by problems that differed in context and type of representation from the exam problem. Students were provided verbal scaffolding to solve the new problems. We discuss the common difficulties that students encountered when attempting to transfer their problem solving skills across problems in different representations.